000208324 001__ 208324
000208324 005__ 20231108210728.0
000208324 0247_ $$2datacite_doi$$a10.3204/DESY-THESIS-2015-011
000208324 037__ $$aPUBDB-2015-01676
000208324 041__ $$aEnglish
000208324 088__ $$2DESY$$aDESY-THESIS-2015-011
000208324 0881_ $$aDESY-THESIS-2015-011
000208324 1001_ $$0P:(DE-H253)PIP1013653$$aSkaugen, Arvid$$b0$$eCorresponding Author$$gmale
000208324 245__ $$aExchange Interactions and Induced $Eu^{3+}$ Magnetic Order in $RMnO_{3}$ Investigated Using Resonant X-ray Diffraction$$f2011-01-15 - 2015-02-26
000208324 260__ $$bVerlag Deutsches Elektronen-Synchrotron$$c2015
000208324 300__ $$a137
000208324 3367_ $$2DataCite$$aOutput Types/Dissertation
000208324 3367_ $$0PUB:(DE-HGF)3$$2PUB:(DE-HGF)$$aBook$$mbook
000208324 3367_ $$2ORCID$$aDISSERTATION
000208324 3367_ $$2BibTeX$$aPHDTHESIS
000208324 3367_ $$02$$2EndNote$$aThesis
000208324 3367_ $$0PUB:(DE-HGF)11$$2PUB:(DE-HGF)$$aDissertation / PhD Thesis$$bphd$$mphd$$s1699441761_1820767
000208324 3367_ $$2DRIVER$$adoctoralThesis
000208324 4900_ $$0PERI:(DE-600)1437131-5$$aDESY-THESIS$$x1435-8085
000208324 502__ $$aDissertation, Universität Hamburg, 2015$$bDissertation$$cUniversität Hamburg$$d2015$$o2015-02-26
000208324 520__ $$aThe so-called multiferroics, materials that concomitantly exhibit more than one ferroic order, have in recent years attracted much attention owing totheir possible applications in high density data storage, high sensitivity ac magnetic field sensors and novel spintronic devices. In particular, multifer-roics with strong magnetoelectric coupling are more attractive. Among such multiferroics, an interesting special class is the orthorhombic manganiteswith perovskite structure. In these compounds, frustration serves to destabilize ordinary ferromagnetic or antiferromagnetic ordering, giving rise to richphase diagrams due to several competing magnetic interactions. Interactions between strong rare earth magnetic moments and weaker transition metalmoments add another level of complexity, as well as interest. The current dissertation presents results obtained investigating the mag-netic structure responsible for ferroelectricity in a few selected multiferroic compounds, using x-ray resonant magnetic scattering (XRMS). In particular,single crystals of Eu1−xYxMnO3 have been studied at low temperatures and in high magnetic fields. This series of compounds is similar in structure tothe heavily studied RMnO3 (R=Tb,Gd,Dy), only without rare earth magnetism. The novel technique of full polarization analysis has been used todetermine the complicated cycloidal Mn magnetic ordering, and additional components due to the Dzyaloshinskii-Moriya interactions have been iden-tified. In the compound Eu0.8Y0.2MnO3, two coexisting multiferroic phases were observed, and a magnetoelectric coupling between the two was established. Moreover, magnetic order of the formally non-magnetic rare earth ion Eu3+ was observed in the same compound. It has been concluded toresult from a Van Vleck type excitation of the J = 0 ground state due to the symmetry-breaking internal exchange field from the Mn magnetic moments.In addition, this dissertation reports on high field investigations of the complex low-temperature phases of GdMnO3 as well as high energy non-resonant scattering studies of TbMnO3. In the case of TbMnO3, the simple high energy magnetic cross section allowed for direct determination of spincomponents in the ferroelectric phase. In the case of GdMnO3, the first high field XRMS investigation below the Gd ordering temperature was performed, revealing an important role of the symmetric exchange interaction between the Gd and Mn subsystems for stabilizing ferroelectricity in the compound.
000208324 536__ $$0G:(DE-HGF)POF3-6212$$a6212 - Quantum Condensed Matter: Magnetism, Superconductivity (POF3-621)$$cPOF3-621$$fPOF III$$x0
000208324 536__ $$0G:(DE-HGF)POF3-6G3$$a6G3 - PETRA III (POF3-622)$$cPOF3-622$$fPOF III$$x1
000208324 536__ $$0G:(DE-HGF)2015_IFV-VH-GS-500$$aPHGS, VH-GS-500 - PIER Helmholtz Graduate School (2015_IFV-VH-GS-500)$$c2015_IFV-VH-GS-500$$x2
000208324 650_7 $$0V:(DE-588b)4012494-0$$2GND$$aDissertation$$xDiss.
000208324 693__ $$0EXP:(DE-H253)P-P09-20150101$$1EXP:(DE-H253)PETRAIII-20150101$$6EXP:(DE-H253)P-P09-20150101$$aPETRA III$$fPETRA Beamline P09$$x0
000208324 693__ $$0EXP:(DE-H253)P-P07-20150101$$1EXP:(DE-H253)PETRAIII-20150101$$6EXP:(DE-H253)P-P07-20150101$$aPETRA III$$fPETRA Beamline P07$$x1
000208324 7001_ $$0P:(DE-H253)PIP1000401$$aRoehlsberger, Ralf$$b1$$eThesis advisor$$udesy
000208324 7001_ $$0P:(DE-HGF)0$$aRübhausen, Michael$$b2$$eThesis advisor
000208324 773__ $$y2015
000208324 8564_ $$uhttps://bib-pubdb1.desy.de/record/208324/files/Thesis.pdf$$yOpenAccess
000208324 8564_ $$uhttps://bib-pubdb1.desy.de/record/208324/files/desy-thesis-15-011.title.ps$$yOpenAccess
000208324 8564_ $$uhttps://bib-pubdb1.desy.de/record/208324/files/Thesis.gif?subformat=icon$$xicon$$yOpenAccess
000208324 8564_ $$uhttps://bib-pubdb1.desy.de/record/208324/files/Thesis.jpg?subformat=icon-1440$$xicon-1440$$yOpenAccess
000208324 8564_ $$uhttps://bib-pubdb1.desy.de/record/208324/files/Thesis.jpg?subformat=icon-180$$xicon-180$$yOpenAccess
000208324 8564_ $$uhttps://bib-pubdb1.desy.de/record/208324/files/Thesis.jpg?subformat=icon-640$$xicon-640$$yOpenAccess
000208324 8564_ $$uhttps://bib-pubdb1.desy.de/record/208324/files/Thesis.pdf?subformat=pdfa$$xpdfa$$yOpenAccess
000208324 8564_ $$uhttps://bib-pubdb1.desy.de/record/208324/files/desy-thesis-15-011.title.gif?subformat=icon$$xicon$$yOpenAccess
000208324 8564_ $$uhttps://bib-pubdb1.desy.de/record/208324/files/desy-thesis-15-011.title.jpg?subformat=icon-1440$$xicon-1440$$yOpenAccess
000208324 8564_ $$uhttps://bib-pubdb1.desy.de/record/208324/files/desy-thesis-15-011.title.jpg?subformat=icon-180$$xicon-180$$yOpenAccess
000208324 8564_ $$uhttps://bib-pubdb1.desy.de/record/208324/files/desy-thesis-15-011.title.jpg?subformat=icon-640$$xicon-640$$yOpenAccess
000208324 8564_ $$uhttps://bib-pubdb1.desy.de/record/208324/files/desy-thesis-15-011.title.jpg?subformat=icon-700$$xicon-700$$yOpenAccess
000208324 909CO $$ooai:bib-pubdb1.desy.de:208324$$popenaire$$popen_access$$pdnbdelivery$$pdriver$$pVDB
000208324 9101_ $$0I:(DE-HGF)0$$6P:(DE-H253)PIP1013653$$aExternes Institut$$b0$$k>Extern
000208324 9101_ $$0I:(DE-588b)2008985-5$$6P:(DE-H253)PIP1000401$$aDeutsches Elektronen-Synchrotron$$b1$$kDESY
000208324 9101_ $$0I:(DE-588)1043621512$$6P:(DE-H253)PIP1000401$$aEuropean XFEL$$b1$$kXFEL.EU
000208324 9131_ $$0G:(DE-HGF)POF3-621$$1G:(DE-HGF)POF3-620$$2G:(DE-HGF)POF3-600$$3G:(DE-HGF)POF3$$4G:(DE-HGF)POF$$9G:(DE-HGF)POF3-6212$$aDE-HGF$$bForschungsbereich Materie$$lVon Materie zu Materialien und Leben$$vIn-house research on the structure, dynamics and function of matter$$x0
000208324 9131_ $$0G:(DE-HGF)POF3-622$$1G:(DE-HGF)POF3-620$$2G:(DE-HGF)POF3-600$$3G:(DE-HGF)POF3$$4G:(DE-HGF)POF$$9G:(DE-HGF)POF3-6G3$$aDE-HGF$$bForschungsbereich Materie$$lVon Materie zu Materialien und Leben$$vFacility topic: Research on Matter with Brilliant Light Sources$$x1
000208324 9130_ $$0G:(DE-HGF)POF2-54G14$$1G:(DE-HGF)POF2-540$$2G:(DE-HGF)POF2-500$$9G:(DE-H253)POF2-P09-20130405$$aDE-HGF$$bStruktur der Materie$$lForschung mit Photonen, Neutronen und Ionen (PNI)$$vPETRA III$$x0
000208324 9130_ $$0G:(DE-HGF)POF2-54G14$$1G:(DE-HGF)POF2-540$$2G:(DE-HGF)POF2-500$$9G:(DE-H253)POF2-P07-20130405$$aDE-HGF$$bStruktur der Materie$$lForschung mit Photonen, Neutronen und Ionen (PNI)$$vPETRA III$$x1
000208324 9141_ $$y2015
000208324 915__ $$0StatID:(DE-HGF)0510$$2StatID$$aOpenAccess
000208324 920__ $$lyes
000208324 9201_ $$0I:(DE-H253)FS-PE-20120731$$kFS-PE$$lExperimentebetreuung PETRA III$$x0
000208324 980__ $$aphd
000208324 980__ $$aVDB
000208324 980__ $$abook
000208324 980__ $$aI:(DE-H253)FS-PE-20120731
000208324 980__ $$aUNRESTRICTED
000208324 9801_ $$aFullTexts